Jarring-machine.



B. D. FULLER & J. R. & T. A. REILLY.

JARRING MACHINE. APPLICATION FILED 001". 17, 1912.

- Patented Feb. 23, 1915.

INVENTgEJS THE NORRIS PETERS CO., PHDTO LITHOH WASHING mm, D. c.

TTNTTEU %TATE% PATENT FFTE BENJAMIN D. FULLER AN'D JAMES R. REILLY, 0FLAKEWOOD, AND THOMAS A. REILLY, OFGLEVELAND, OHIO.

JARItlNG-MACHINE.

earse.

Specification of Letters Patent.

Patented Feb. 23, 1915.

Application'filed October 17, 1912. Serial No. 726,313.

To all whom it may concern Be it known that we, BENJAMIN D. FUL- LER andJAMES R. REILLY, residents of Lakewood, county of Cuya-hoga, and Stateof Ohio, and THOMAS A. REILLY, a resident of Cleveland, county ofCuyahoga, and State of Ohio, citizens of the United States, have jointlyinvented a new and useful Improvement in Jarring-Machines, of which thefollowing is a specification, the principle of the invention beingherein explained and the best mode in which we have contemplatedapplying that principle, so as to distinguish it from other inventions.

The machine which forms the subject mat ter of the present invention,comprises a jarringmachine for use in filling mold boxes and packing thesand around the patternplate.

The invention relates more particularly to the means for holdingthe moldbox, consisting, of course, of the pattern plate and the flask on thetop of the jarring machine which forms the filling stand proper, andalso in the extremely simple and automatically operated means forjarring the mold.

To the accomplishment of these and related ends, said invention, then,consists of the means hereinafter fully described and particularlypointed out in the claims.

The annexed drawing and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

In said annexed drawing: Figure 1 is a plan view of a filling standprovided with improved means for retaining the mold box thereon; Fig. 2is a central vertical section on the line 22 in Fig. 1; Fig. 3 is a sideelevation of the mechanism in Fig. 1; and Fig. 42 is a central sectionsimilar to Fig. 2, but illustrating a modified form of our device.

Referring to Fig. 2, it will be seen that our invention comprises theusual tubular support 1, in which is reciprocably mounted a piston 2,cast integrally with the top 3, forming the filling stand proper. Thetop of the support 1, is provided with laterally extending shoulders 4:,against which the shoulders 5 on the piston are adapted to contact, andas the piston is shorter in length than the distance between theshoulders 4L and the bottom of the support, such contact betweenthe'shoulders i and 5 imparts a considerable jar to the filling stand.The piston is adapted to be operated by a suitable pressure fluid, suchas compressed air, and an inlet port 6 is provided at the lower end ofthe support, which will lead to any suitable source (not shown) of fluidpressure. Outlet ports 7 are provided in the tubular support, and arelocated some distance above the level of the inlet port 6, beingnormally covered and closed by the piston 2. In the present view we haveshown but one such outlet, but it will be understood that the number isimmaterial so long as the area of the port opening is suilicient toafford a rapid exhaust of the pressure fluid actuating the piston. Thepiston 2 is hollowed out at its lower end, forming an inverted cup Sandgreatly increasing the space which is to be filled with the pressurefluid.

The operation of thereciprocating means is as follows: Air is admittedbeneath the piston through the inlet ports 6, thus forcing the pistonupwardly until the sides of the piston uncover the outlet port or ports7. The area of these ports is considerably greater than the area of theinlet ports, and the air beneath the piston will therefore exhaust veryrapidly, permitting the piston to fall. Such downward movement of thepiston tends, of course, to be arrested as soon as the sides of thepiston cover the outlet ports, as the incoming air forms a cushionbetween the piston and the bottom of the tubular support. If the pistonwere not hollowed out, such cushioning effect of the fluid would notpermit the piston to strike upon the shoulders, but would immediatelyforce it upward, thus uncovering the outlet ports, and imparting aspringy jogging movement to the piston. The hollowed out portion of thepiston, however, is not filled with sufficient pressure fluid beforecontact between the shoulders on the piston and support to permit suchjogging movement. By the time these shoulders have contacted, thecup-shaped portion of the piston is filled with fluid, and the piston isthen forced upward as before. The action is automatic at all times, andvery little pressure fluid is lost by reason of the opening of bothinlet and exhaust ports in one position of the piston.

The present machine is designed to operate with small sizes of moldboxes which must be fastened to the top of the reciproeating member bysuitable means, as their weight is insufficient to keep them in contactwith the top at all times. This is, of course, not a difliculty injarring large sizes of mold boxes since their weight is suflicient tokeep them in contact with the top or filling stand through the jarringoperation. It is necessary, therefore, to provide some simple and easilyadjusted means for retaining the mold boxes on the top. A suitable meanswhich we have designed for this purpose consists in a fixed flange 9disposed at any convenient point on the top, and a second movable flangeor adjustable retaining member 10 which is provided with handles 11,adapting it to be conveniently adjusted by an operator, and withdownwardly extending lugs or jaws 12 which engage with suitable engagingmeans on the top, such means preferably comprising outwardly extendinglugs 13, between which the jaws 12 are adapted to be secured.

In order to secure a nicety of adjustment, which is impossible with thelugs and jaws alone, by reason of the fact that the jaws must, ofcourse, engage between the lugs, and the latter are spaced at definiteintervals, we have provided resilient means adapted to engage one faceof the mold box, and to operate against one of the two flanges. Suchresilient means comprise a retaining member 16 in the form of a flange,which contacts the side of the mold box 17 and is attached to one ofthe'other flanges, as shown in Fig. 2 the flange 10, by means of twobolts 14, the bolts being fixedly attached to the flange 16, andslidably attached to the flange 10, and springs 15 encircling said boltsand operating between the flanges 16 and 10. When the adjustable flangeis moved to a position as near the mold box as is possible, the flange16 is thus forced into a secure frictional engagement with the mold boxby means of the springs 15 which operate against the flange 10.

It is, of course, a matter of no moment, whether the third flange beattached to the adjustable flange 10, or the fixed flange 9. In Fig. 4we have shown a slightly different form of our invention. In this formthe third flange or retaining member 22, bolts 20 encircled by springs21, are shown attached to the fixed flange 9, in which case theoperation will be as before, except that the adjustable flange 10 willbe placed against the mold box and will force the latter across the topinto contact with the flange 22, until the springs have been compressedas shown, when the flange 10 is dropped downwardly, the jaws 12 engagingbetween the adjacent lugs 13.

The advantages of the present means for securing the mold boxes to thetop, are apparent. The means are extremely simple, and the method ofadjustment can be readily understood by the operators. The advantages ofthe jarring means are the simplicity, and the automatic action of thesame.

Other modes of applying the principle of our invention may be employedinstead of the one explained, change being made as regards the mechanismherein disclosed, provided the means stated by any of the followingclaims or the equivalent of such stated means be employed.

We therefore particularly point out and distinctly claim as ourinvention 1. In a machine of the class described, the combination of afilling stand adapted to receive a mold-box thereon; a fixed flangeattached to said stand; a second flange movably mounted on said stand;and a third flange disposed between said other flanges and resilientlyattached to one of the same.

2. In a machine of the class described, the combination of a fillingstand adapted to receive a mold-box thereon; a fixed flange mounted onsaid stand; a second flange adapted to be adjusted relative to saidfixed flange and substantially parallel thereto; a third flange disposedbetween said other flanges adjacent said second flange, said thirdflange being resiliently attached to said second flange; engaging meansmounted on said second flange; and complementary engaging means mountedon said stand adapted to cooperatively engage with said first-namedengaging means.

3. In a machine of the class described, the combination of a fillingstand adapted to receive a mold-box thereon; a fixed flange mounted onsaid stand; a series of spaced lugs mounted on said stand and extendingin a line at substantially right angles to the said fixed flange; asecond flange provided with projecting lugs, such lugs being adapted toremovably engage said lugs on said stand.

a. In a machine of the class described, the combination of asubstantially rectangular filling stand adapted to receive a mold-boxthereon; a flange fixed along one edge of said stand; a series of lugsformed in either of the adjacent edges of said stand; a second flangeprovided at either end with a lug adapted to removably engage betweensaid lugs on the edges of said stand; and handles on said second flange,adapting the same to be moved along said stand.

5. In a machine of the class described, the combination of a fillingstand adapted to receive a mold-box thereon; a fixed flange mounted onsaid stand; a second flange adapted to be adjusted relative to saidfixed flange and substantially parallel thereto; a

third flange disposed between said other flanges adjacent said secondflange, a bolt connecting said second and third flanges in parallelspaced relation; a coiled spring encircling said bolt and permitting ayielding of said third flange toward said second flange; engaging meansmounted on said second flange; and complementary engaging means mountedon said stand adapted to cooperatively engage with said firstnamedmeans.

6. In a machine of the class described, the combination of a fillingstand adapted to receive a mold-box thereon; a fixed flange mounted onsaid stand; a second flange adapted to be adjusted relative to saidfixed flange and substantially parallel thereto; a third flange disposedbetween said other flanges adjacent said second flange, a plurality ofbolts connecting said second and third flanges in parallel spacedrelation; a coiled spring encircling each of said bolts and permitting ayielding of said third flange toward said second flange; engaging meansmounted on said second flange; and complementary engaging means mountedon said stand adapted to cooperatively engage with said first-namedmeans.

Signed by us this 15th day of ()ctober, 1912.

BENJAMIN D. FULLER. J AMES R. REILLY. THOMAS A. REILLY. Attested by-GEO. E. ANnUs, A. H. JoNns.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. O.

